1999MNRAS.304...67F

Query : 1999MNRAS.304...67F

1999MNRAS.304...67F - Mon. Not. R. Astron. Soc., 304, 67-74 (1999/March-3)

On the spectrum and nature of the peculiar type Ia supernova 1991T.

FISHER A., BRANCH D., HATANO K. and BARON E.

Abstract (from CDS):

A parametrized supernova synthetic-spectrum code is used to study line identifications in the photospheric-phase spectra of the peculiar Type Ia SN 1991T, and to extract some constraints on the composition structure of the ejected matter. The inferred composition structure is not like that of any hydrodynamical model for Type Ia supernovae. Evidence that SN 1991T was overluminous for a SN Ia is presented, and it is suggested that this peculiar event was probably a substantially super-Chandrasekhar explosion that resulted from the merger of two white dwarfs.

Abstract Copyright: 1999, Royal Astronomical Society

Journal keyword(s): radiative transfer - supernovae: general - supernovae: individual: SN 1991T

Simbad objects: 8

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Number of rows : 8
N Identifier Otype ICRS (J2000)
RA 		ICRS (J2000)
DEC 		Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2026 		#notes
1 NAME Virgo Region reg 12 30.8 +12 23           ~ 140 1
2 NGC 4496 GiP 12 31 39.2222392512 +03 56 21.641352828   11.71       ~ 376 0
3 SN 1960F SN* 12 31 42.05 +03 56 47.7   11.34 11.43     SNIa 116 1
4 NGC 4527 AGN 12 34 08.49600 +02 39 13.7160   12.4       ~ 549 2
5 SN 1991T SN* 12 34 10.20 +02 39 56.4   11.70 11.51     SNIapec 795 1
6 NGC 4536 H2G 12 34 27.12887 +02 11 16.3680 11.14 11.16 10.55 17.393   ~ 913 3
7 SN 1981B SN* 12 34 29.57 +02 11 59.3   11.74       SNIa 416 1
8 SN 1990N SN* 12 42 56.68 +13 15 23.4   12.69 12.62     SNIa 406 1

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